Latest News About Olivia Thirlby joins Fire Country as season five regular

CBS added Olivia Thirlby to Fire Country as its first series regular in five seasons. Thirlby is set to join the cast for season five, which stars Max Thieriot. The network confirmed that change on June 29, 2026. Showrunner Ann Donahue said Thirlby’s role in a statement to Deadline. Thirlby replaces no one; she steps into a newly created position for the show. Production starts following casting closes near Los Angeles. The drama centers on Cal Fire crews battling wildfires in Northern California.

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